Amprius Silicon-Anode Cells

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Authorized Assembler & Supplier

High-Energy Silicon-Anode Battery Cell Solutions

As an authorized pack assembler and technical partner for Amprius, Emerging Power offers global OEMs access to industry-leading gravimetric energy densities reaching up to 400 Wh/kg. Engineered for mission-critical unmanned aerial vehicles (UAVs), high-altitude pseudo-satellites (HAPS), defense platforms, wearable medical equipment, and advanced aerospace systems.

Extreme Energy Density

Leveraging silicon-nanowire and silicon-composite anode structures to deliver up to 2x energy density compared to conventional graphite-anode lithium-ion cells.

Military & Aerospace Grade

Assembled in our US-based ITAR-registered, AS9100, and ISO9001 certified facilities under strict quality and safety management systems.

Full Pack Integration

Emerging Power provides complete custom battery design including multi-cell assembly, smart BMS protection, ultrasonic welding, and UN/ST38.3 testing.

Cell Specifications

Amprius Battery Cell Product Line

Amprius 11.05 Ah Power Cell
Amprius Power

11.05 Ah Power Cell

Gravimetric Density: 360 Wh/kg
Capacity: 11.05 Ah
Application: High Discharge OEM
Amprius 11.25 Ah Energy Power Balanced Cell
Balanced Power

11.25 Ah Energy + Power Balanced Cell

Gravimetric Density: 355 Wh/kg
Capacity: 11.25 Ah
Application: Robotics & Drones
Amprius 11.9 Ah Energy Cell
Ultra High Energy

11.9 Ah Energy Cell

Gravimetric Density: 400 Wh/kg
Capacity: 11.9 Ah
Application: UAV & Aerospace
Amprius 30.75 Ah Energy Power Balanced Cell
High Capacity

30.75 Ah Energy + Power Balanced Cell

Gravimetric Density: 353 Wh/kg
Capacity: 30.75 Ah
Application: Heavy Duty Payload
Amprius 4Ah Energy Mid Power 18650 Cell
18650 Form Factor

4Ah Energy + Mid Power 18650 Cell

Gravimetric Density: 300 Wh/kg
Capacity: 4.0 Ah
Form Factor: 18650 Cylindrical
Amprius 6Ah Energy Mid Power 21700 Cell
21700 Form Factor

6Ah Energy + Mid Power 21700 Cell

Gravimetric Density: 300 Wh/kg
Capacity: 6.0 Ah
Form Factor: 21700 Cylindrical
Amprius 8.18 Ah Energy Cell
Amprius Energy

8.18 Ah Energy Cell

Gravimetric Density: 385 Wh/kg
Capacity: 8.18 Ah
Application: Long Duration Systems
Amprius 8.9 Ah Long Cycle Life Cell
Long Cycle Life

8.9 Ah Long Cycle Life Cell

Gravimetric Density: 320 Wh/kg
Capacity: 8.9 Ah
Feature: Extended Lifespan

Custom Pack Engineering with Amprius Cells

Deploying high-energy silicon-anode cells requires experienced thermal management, specialized cell matching, and targeted BMS protection algorithms. Emerging Power's engineering team delivers end-to-end custom battery pack development for OEMs worldwide—ensuring full compliance with UN/ST38.3, ITAR, AS9100, and commercial aviation safety standards.

Request Amprius Cell Pricing & Custom Assembly Quotes

Consult with our US-based engineering team for volume pricing, datasheet validation, and customized battery pack integration for your application.

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